After seeing Tekken 6 ending and TTT2 endings seems they're still going for Jin/Devil Jin's Lars's ending. Jin beating yet again Kaz and Heihachi. Lars shows up they fight Azazel awakened Jin turns into devil Jin, defeats Azazel in a fight gets buried in the ruins and was found.

The one thing I find funny in Tekken that storywise in canon some of the joke characters are serious, they're just given joke endings and another funny thing here is that the Mishima's are similar to Jostar family from Jojo's.